Around the globe, Keller (Keller 
, كيلر 
, קלר 
, and others...) is quite a rare gender-neutral first name. The first name Keller is characteristic of Switzerland, where it is quite a rare gender-neutral name, Guatemala, where it is a rare boy's name, and Israel, where it is a rare principally girly, but scarcely boy's name. Measured by absolute frequency, the name is most common in Brazil, the United States, and Germany. Much more frequently, Keller is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Keller | Brazil, France, Germany, United States, Switzerland |
| كيلر | Saudi Arabia, Iraq |
| קלר | Israel |
| ケラー | Japan |
| Келлер, Келер | Ukraine, Belarus, Russia, Kyrgyzstan, Kazakhstan |
Keller is also a name for the fictitious and mythical characters: Keller frères , the Honoré de Balzac character, Les Petits Bourgeois.
| matthes keller DE (b. 1654) |
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| reinhardt keller Swiss painter, CH (b. 1759) |
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| melchior keller männlich | 16.2.1806 Siblingen | 14.3.1864 os; 26.3.1864 Sankt Petersburg | Schweizer | Lehrer (b. 1806) |
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walther keller German publisher, DE (b. 1864) |
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| lorenz ernst keller (b. 1835) |
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deane keller American artist and academic (1901-1992), US (b. 1901) |
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| harrison keller American musician, US (b. 1888) |
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| rupprecht von keller German lawyer and diplomat, DE (b. 1910) |
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| mister keller (b. 1900) |
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| lewis keller animation filmmaker (1912-1996), US (b. 1912) |
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| ruprecht keller (b. 1913) |
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| morton keller American historian, US (b. 1929) |
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sander keller Dutch footballer, NL (b. 1979) |
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| hagen keller German medievalist, DE (b. 1937) |
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| deane g. keller American artist and academic (1940-2005), US (b. 1940) |
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